Giải các bất phương trình :
$\begin{array}{l}
1)\,\,\,\,\,\frac{{{{\log }_5}{{\left( {{x^2} - 4x - 11} \right)}^2} - {{\log }_{11}}{{\left( {{x^2} - 4x - 11} \right)}^3}}}{{2 - 5x - 3{x^2}}} \ge 0\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,(1)\\
2)\,\,\,\,\frac{{{{\log }_2}{{\left( {{x^2} - 2x - 7} \right)}^5} - {{\log }_3}{{\left( {{x^2} - 2x - 7} \right)}^8}}}{{3{x^2} - 13x + 4}} \le 0\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,(2)
\end{array}$